18. what's a ventifact? a. a wind-borne deposit of sand b . the side of a sand dune protectechirom wind c. a wind-borne deposit of nutrient-rich soil d. a rock formation shaped naturally by wind

Astudent drew the following flowchart to show the movement of nutrients. soil → roots → plants →? where does nitrogen go next? a. directly into nearby animals as nutrition b. directly into aquifers through condensation c. directly into the air through evaporation d. directly into nearby plants during fixation

Plz ! a scientist wants to produce a cow that makes a particular human protein in it’s milk the desired protein causes blood to clot and can be used to treat hemophilia (a blood clotting disorder). which of the following would be best for the scientist to use? a. genetic crosses. b. cloning. c. selective breeding. d. genetic engineering.

Variety of living organisms; includes genetic, species, and ecological types.